27.09
sun
sun
Day
73°F
W 10 mph
Precip.
4%
4%
Night
73°F
W 10 mph
Precip.
5%
5%
28.09
mon
mon
Day
73°F
W 14 mph
Precip.
4%
4%
Night
73°F
W 13 mph
Precip.
16%
16%
29.09
tue
tue
Day
73°F
W 20 mph
Precip.
20%
20%
Night
73°F
W 16 mph
Precip.
55%
55%
30.09
wed
wed
Day
75°F
W 19 mph
Precip.
21%
21%
Night
70°F
NW 12 mph
Precip.
81%
81%
01.10
thu
thu
Day
70°F
W 4 mph
Precip.
21%
21%
Night
73°F
NW 2 mph
Precip.
15%
15%
02.10
fri
fri
Day
75°F
W 17 mph
Precip.
15%
15%
Night
75°F
NE 7 mph
Precip.
15%
15%
03.10
sat
sat
Day
73°F
W 9 mph
Precip.
14%
14%
Night
73°F
SW 6 mph
Precip.
9%
9%
sea water
temperature
temperature
| La Seyne sur Mer |
monthly
weather
weather
| La Seyne sur Mer |
current
weather
weather
| La Seyne sur Mer |
14 days
forecast
forecast
| La Seyne sur Mer |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 75.3°F. The highest and lowest sea temperatures during the month were 79.0°F and 72.5°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 67.5°F. The highest and lowest sea temperatures during the month were 70.5°F and 59.7°F.
Air temperature in La Seyne sur Mer, °F
Precipitation total in La Seyne sur Mer, in.
* Charts above show average data for the last 3 years.
Best time for vacation in La Seyne sur Mer
La Seyne sur Mer on a weather map
Places in France:
Name
°F
24 Hours Forecast
La Seyne sur Mer
Local time: 09:18
September 27, sunday
1200
73°F
W
10 mph
10 mph
1500
75°F
W
11 mph
11 mph
1800
73°F
NW
10 mph
10 mph
2100
73°F
W
7 mph
7 mph
September 28, monday
0000
73°F
W
10 mph
10 mph
0300
72°F
W
11 mph
11 mph
0600
72°F
W
12 mph
12 mph
0900
72°F
W
14 mph
14 mph
